Oracle Trigger to persist value

Posted by Jose Jose on Stack Overflow See other posts from Stack Overflow or by Jose Jose
Published on 2010-04-09T18:55:43Z Indexed on 2010/04/09 19:13 UTC
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Oracle

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trigger

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database

I have a column that I need to be able to guarantee never gets set to anything other than "N" - I thought a trigger would be the perfect solution for this, but I can't seem to figure out how to make it so that anytime the column gets set to something other than "N" I reset it back to "N"

Any pointers?

EDIT: I wouldn't want to do a constraint because the application that will potentially change it to Y is outside of my control and I don't want it to be getting errors when it sets it to Y, I just want to passively set it back to N without fanfare.

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